KeyLine Chargers 12V 140 Amp Dual Battery Isolator | Automatic 12V VSR Battery Disconnect Switch for Vehicles

ZERO VOLTAGE DROP Forget the loss of up to 2 amps of output power with conventional diode relays and "solid state" devices. The Keyline Dual Battery Isolator ensures you don't sacrifice performance with ZERO voltage drop, delivering optimum output power.

COMPACT AND CUSTOM FIT At just 2.6" x 2.6" x 2", the Keyline Dual Battery Isolator is ultra-small and can fit almost anywhere. Its perfect fit under the hood makes it easy to install close to your dual batteries.

VOLTAGE SENSITIVE RELAY The KeyLine Automatic 140 Amp Dual Battery Isolator features a Voltage Sensitive Relay (VSR) that cuts in at 13.3 volts and cuts out at 12.8 volts. This ensures your primary battery is always charged and ready to start your vehicle, providing two separate power sources for each battery while only having one alternator.

RUGGED AND DURABLE The KeyLine Automatic 140 Amp Dual Battery Isolator is IP65 Certified, providing rugged durability. This International Protection rating makes it safe for use in dusty, wet, and extreme weather environments. It’s also perfect for applications with extreme vibration.

EASY TO USE The 140 Amp Dual Battery Isolator comes with a mounting plate and hardware and includes easy-to-follow directions for DIY installation. Installation only requires your own wiring.

BUY WITH CONFIDENCE Backed by an industry-leading 12-month warranty, the Keyline Dual Battery Isolator is a safe investment. If you're not 100% satisfied, you can return it within 30 days with no questions asked and a full refund.